As so often with his published texts, the experience of reading Nietzsche’s notebooks is at once mesmerising and infuriating. One is in the presence of a thinker who, on the one hand, meditates deeply on fundamental issues in philosophy and psychology but who, on the other, refuses to be pinned down. The fact that Nietzsche’s style is so elusive can account for the enormously disparate interpretations of his work and it is no surprise that his notebooks have been read in the most extreme fashion. The notebooks have a chequered history having been variously touted as the crowning achievement of his philosophy, and as not repaying the effort of reading.